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  • Notes

    ...objects, the ljust(), center(), and rjust() methods now accept an optional argument specifying a fill character other than a space. When method objects have an attribute that can be satisfied either by the function object or by the method object, the function object's attribute usually wins. Christian Tismer pointed out that that this is really a mistake, because this only happens for special methods (like __reduce__) where the method object's version is really more appropriate than the functio...

  • PSF-2005-001 - SimpleXMLRPCServer.py allows unrestricted traversal

    ...object-oriented programming language. It is often compared to Tcl, Perl, Scheme or Java.</p> <p>The Python development team has discovered a flaw in the SimpleXMLRPCServer library module which can give remote attackers access to internals of the registered object or its module or possibly other modules. The flaw only affects Python XML-RPC servers that use the register_instance() method to register an object without a _dispatch() method. Servers using only register_function() are n...

  • Python 2.0

    ...objects. The standard header <limits.h> is now included by Python.h (if it exists). INT_MAX and LONG_MAX will always be defined, even if <limits.h> is not available. PyFloat_FromString takes a second argument, pend, that was effectively useless. It is now officially useless but preserved for backwards compatibility. If the pend argument is not NULL, *pend is set to NULL. PyObject_GetAttr() and PyObject_SetAttr() now accept Unicode objects for the attribu...

  • Python Software Foundation: Call for Grant Proposals 2004

    ...objective, rather than support for ongoing activities. Proposals should be brief (a few pages of text), and they should explain: what the objective of the project is, what precisely the funds are needed for, a delivery plan, indicating what deliverables will be provided at what time, and a payment plan, indicating what payments should be made at what time. Awarded grants can range up to $40,000. Proposals for this call must be submitted before October 1, 2004. Projects will start on November 1...

  • Python 2.4.1 - Release Notes

    ...Object_GC_New or PyObject_GC_NewVar to allocate objects and PyObject_GC_Del to deallocate them rename PyObject_GC_Init to PyObject_GC_Track and PyObject_GC_Fini to PyObject_GC_UnTrack remove PyGC_HEAD_SIZE from object size calculations remove calls to PyObject_AS_GC and PyObject_FROM_GC Two new functions: PyString_FromFormat() and PyString_FromFormatV(). These can be used safely to construct string objects from a sprintf-style format string (similar to the format string supported by PyErr_For...

  • Event – PyData Workshop-Sprint 2012 at NYC

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    Location: Pivotal Labs, 841 Broadway New York, NY, New York, NY, http://pivotallabs.com/

    PyData Workshop-Sprint 2012 at NYC Are you interested in a one-day hands-on intensive Pandas workshop and sprint for new contributors with a Pandas core-dev leading the sprint? Objective The aim of this workshop and sprint is to encourage and rope in more bug triagers and new contributors to scientific programming …

  • Comparing Python to Other Languages

    ...object-based" subset is roughly equivalent to JavaScript. Like JavaScript (and unlike Java), Python supports a programming style that uses simple functions and variables without engaging in class definitions. However, for JavaScript, that's all there is. Python, on the other hand, supports writing much larger programs and better code reuse through a true object-oriented programming style, where classes and inheritance play an important role. Perl Python and Perl come from a similar ...

  • Notes

    ...objects, instead of strings. Objects which have Python equivalents are converted to Python objects, other objects are wrapped. This can be configured through the wantobjects method, or Tkinter.wantobjects. The PyBSDDB wrapper around the Sleepycat Berkeley DB library has been added as the package bsddb. The traditional bsddb module is still available in source code, but not built automatically anymore, and is now named bsddb185. This supports Berkeley DB versions from 3.0 to 4.1. For help con...

  • Python Success Stories

    ...object by parsing the object's methods with Python's regular expression module, categorizing it, and building the GUI accordingly. This code is also used in MayaVi's persistence mechanism, which can save most VTK objects to disk by inspecting them at runtime. The use of introspection to write data-driven modules such as these avoided substantial amounts of manual coding, and makes MayaVi self-extending as additional VTK objects are defined. Since Python is a scripting language, it was the natu...

  • Python Success Stories

    ...objects. There would be three kinds of objects in this tree: Configuration (the top-level object representing the entire configuration), Site (representing one of the sites to be polled) and User (representing user data attached to a site). The example file describes five site objects, each with one user object attached to it. I had already designed and written the three object classes (that's what took four days, most of it spent getting the layout of the widgets just right). Each had a method ...

  • Proposed Improvements to Module Cleanup

    ...object contains a reference to the function's 'globals' object, which is the __dict__ of the module that defines it. Since the __dict__ normally has a reference to the function there's a cycle that needs to be broken, or else the __dict__ would never be garbage collected. Note that a reference-count based solution doesn't work within one module, since references between functions are by name, not by value -- two mutually recursive functions can still both have a reference count of on...

  • Comparing Option-Parsing Libraries

    ...object); doesn't have much affect on the iterator version (it just means a bit more typing); and it makes argtools look bad, since I have to explicitly copy all of my option values from the parser object to my dedicated option values object. And now, ladies and gentlemen... Enough delay, on with the show! First, some simple statistics about the three re-implementations: library total code[1] code (no help)[2] Optik 6234 iterator11273 argtools10869 N...

  • Incompatibilities between Python 2.1[.x] and 2.2[.x]

    ...object.__setattr__ to circumvent the restrictions on setting attributes of type objects. <p><li>list.extend() works with any iterable. <p><li>In pdb, you can no longer enable breakpoints with negative numbers. <p><li>The Bastion.py and rexec.py modules are disabled. <p><li>There are some additional restrictions on __class__ assignments. <p><li>__delitem__ for WeakKeyDictionary has been improved and fixed, but may change visible beha...

  • Notes

    ...Object_Str() API called PyObject_Unicode(). It behaves in the same way as the former, but assures that the returned value is an Unicode object (applying the usual coercion if necessary). The comparison operators support "rich comparison overloading" (PEP 207). C extension types can provide a rich comparison function in the new tp_richcompare slot in the type object. The cmp() function and the C function PyObject_Compare() first try the new rich comparison operators before trying the...

  • Glue It All Together With Python

    ...object-oriented language with high-level data structures, dynamic typing, and dynamic binding. Python has been around since 1991, and has a very active user community. For more information, see the Python website http://www.python.org. Like Tcl, Python is easily extensible with C/C++/Java code, and easily embeddable in applications. Python even uses Tk, the Tcl GUI toolkit, for a de-facto standard portable GUI toolkit. Unlike Tcl, however, Python supports object-oriented programming...

  • The Python 2.3 Method Resolution Order

    ...object, therefore diamonds are unavoidable and inconsistencies shows up in every multiple inheritance graph. The MRO of Python 2.2 makes breaking monotonicity difficult, but not impossible. The following example, originally provided by Samuele Pedroni, shows that the MRO of Python 2.2 is non-monotonic: >>> class A(object): pass >>> class B(object): pass >>> class C(object): pass >>> class D(object): pass >>> class E(object): pass >>> class ...

  • Highlights: Python 2.4

    ...objects includes Python functions, class instances, sets, frozensets, deques, arrays, files, sockets and regular expression objects. In addition, the weakref type is now a new-style object which can be subclassed. xmlrpclib now supports a multi-call extension for transmitting multiple XML-RPC calls in a single HTTP operation. The base64 module now supports Base64, Base32 and Base16 encoding and decoding, and more complete support for RFC 3548.

  • What's New In Python 3.0

    ...Object.method returns an ordinary function object, instance.method still returns a bound method object. The API of bound methods is cleaned up, too. The im_class attribute is removed and im_func + im_self are renamed to __func__ and __self__. The factory PyMethod_New takes only func and instance as argument. intobject.h is no longer included by Python.h. The remains were moved to longobject.h. It still exists to define several aliases from PyInt to PyLong functions. Removed sys.maxint, use sys....

  • Release – Python 3.4.0

    Version: None

    Released: March 17, 2014

    Python 3.4.0 Python 3.4 has reached end-of-life. Python 3.4.10, the final release of the 3.4 series, is available here. Python 3.4.0 was released on March 16th, 2014. Major new features of the 3.4 series, compared to 3.3 Python 3.4 includes a range of improvements of the 3.x series, including hundreds …

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  • Release – Python 3.4.5

    Version: None

    Released: June 27, 2016

    Python 3.4 has reached end-of-life. Python 3.4.10, the final release of the 3.4 series, is available here. Python 3.4.5 was released on June 26th, 2016. Python 3.4 has now entered "security fixes only" mode, and as such the only improvements between Python 3.4.4 and Python 3.4.5 are security fixes. Also, …

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